Propelling device.



H. E. ROSE.

PROPELLING DEVICE.

APPLICATION FILED JUNE 17. 19:6.

Patented May 22, 1917.

4 SHEETSSHEET I.

INVENTOR fimwl 4. F065,. flpwv. ATTORNEYS H. E. ROSE.

PROPELLING DEVICE.

I V APPLICATION FILED JUNE 17, 1916. 1,227,200. Patented May 22,1917.

I 4 SHEETSSHEET 2.

INVENTOR ,4 TTOHNE rs WWW 67/7 0 55,

H. E ROSE. P.ROPELL|NG DEVICE.

APPLICATION FILED JUNE 1?. 1916.

H. E. ROSE.

PROPELLING DEVICE.

' APPLICATION FILED JUNE 17' 1916. 1,227,200.

Patented May 22, 1917.

4 SHEETS-SHEET 4.

WITNESSES I INVENTOR 64/ fifl/Pff/ffo 052-,

A TTORNE V8 endless chains,

HARRY E. ROSE, 0F SPOKANE, WASHINGTON.-

rnorELLmG DEVICE.

zsl pecification of Letters Patent.

Patented Ma 22, 1917.

Application filed .Tune 17, 1916. Serial No. 104,194.

. To all whom it may concern:

Be it known that I, HARRY E. Rosie, a citizen of the United States, anda resident of Spokane, in the county of Spokane and State of Washington,have invented a certain new and useful Improvement in PropellingDevices, of which the following is a specification.

My invention relates to lIIIPIOXGmGIIlJS in propelling devices, moreparticularly to propelllng devices for aeroplanes, and it consists inthe combinations, constructions, and arrangements herein described andclaimed.

An object ofmy invention is to provide a propelling device in which aplurality of movable blades or Wings is so mounted that, when the bladesmove toward the rear of the device, a greater surface area ispresentedthan when they move toward the front, thereby propelling thedeviceforwardly.

A further object of my invention is to provide a device of the typedescribed in which the blades or wings are mounted on said bladespassing through the interior of a. casing in substantially foldedcondition and spreading out on emerging from the casing so as to presenta greater surface area.

A further object of my invention is to provide a propeller of the typedescribed 7 which may be used for other devices, such as boats. u

Other objects and advantages will appear,

in the followin specification, and the novel features of the 1nventionwill be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming part ofthis application, and in which Figure'l is a perspective view of anaeroplane provided wit my improved propelling device. v

Fig.- 2 is a longitudinal sectional view through the device.

Fig. 3 is a transverse section along the line 33 of Fig. 2.

Fig. 4 is. an enlarged sectional view through one of the wings or vanes.

Fig. 5 is a perspective view of a modified form of link for the endlesschain.

Fig.6 is a section along the line 66 of Fig. 4;

Referring now-particularly to Figs. 1 and 2, have shown therein a mainframe 1 which supports one of the sustaining planes 2. This framecarries at its bottom the car 3 or basket, the engine 4, and hasarearwardly extending portion 5 beneath which is disposed the lower ofthe main sustaining planes 6. The usual rudder 7 is attached at the rearof the device. The machine is cle signed to be supplied with aileronsand elevating planes, not shown.

The frame 1 supports a casing which I have denoted in general by C. Aswill be seen from the drawings, this casing consists of an innercylinder 8 and an outer wall 9 which is tapered but which is cylindricalin cross section. These inner and outer walls are held in spacedrelation by means of radially extending partitions or brace members 10,see Fig. 3. At the ends of the device between the brace members aredisposed sprocket wheels 11. It will benoted that these sprocket wheels11 are at the larger end of the device. At the other end are similarsprocket Wheels 12. These sprocket wheels bear endless chains 13, dikethat shown in Fig. 2, or of any suitable form, as, for instance, havinglinks like that shown in Fig. 5 at 14.

Secured to each of these endless chains is a series of wings or vanes,like that shown at 15 in Fig. 4. These wings are provided with suitablebrace members 16, in. order to withstand the Wind pressure. Fig. 1 showsthe preferred arrangement of these wings. From this .figure it will beseen that the wings of adjacent sets are not disposed in the same planebut are slightly offset, being arranged like the ribs of a fan, oneslightly behind the other, so that when they are brought into foldedposition they will lie one behind the other. In the drawings I haveshown only a few sets of wings, but

obviously a greater or less number may be the sprocket wheels 11, theaxle of one Wheel outside, said vanes being connected to the aXle of itsadjacent wheel by means of a universal joint 20.

Now it will be obvious that, as the endless chains travel around thesprockets 11 and 12, the vanes or wings 15 will be carried with them.These vanes or wings are arranged so that they will enter the large endof the casing C and diverge from the small end. Owing to the shape ofthe casing the wings will be virtually in alinement, that is to say,behind one another, just as the ribs of a fan are behind one.anothenwhen the fan is closed. The effective surface area of the line ofwings which are advancing toward the small end of the casing, is,therefore, not much greater than that of one of the wings, while onemerging from the small end of the casing, the wings spread out into theform shown in Fig. 1, whereby the full surface area is available for.propellingthe device.

In order to reduce the back pressure due tothe forward movement of thedevice, I provide a conical shield 21 which is carried by the frame 1,and which is spaced from. the casing C just far enough to permitthe.exit of the wings or vanes,

The same principle might be applied to the propelling of boats or otherwater craft.

I claim 4 1, In a propelling device a hollow cylinder, a series of wingsor vanes movably mounted on said cylinder and arranged to travel fromone end of the cylinder to the other on the inside-thereof and back onthe being one behind the other when on the inside of the cylinder, andbeing spread out when on the outside of the cylinder.

2. A propelling device comprising a 1101- low cylinder, a series'ofendless chains carried by the cylinder, means for driving said chains,and a series of wings or vanes projecting laterally from the chains,said wings being carried by the chains out of one end of the cylinderand into the other end of the cylinder by the movement of. the endlesschains- 3. A propelling device comprising a hollow cylinder,.a series ofendless chains eX- tending longitudinally of the cylinder, each of saidendless chains havlng .a portion inportion outside the side the cylinderand a cylinder and portions encircling the end of the cylinder, a seriesof wingsor vanes carried by each endless chain, causing the travel ofthe chains.

4. A propelling device for aeroplanes comprising a hollow cylinder, .aseries of endless chains disposed longitudinally of the cylinder, aportion of each chainbeing on the inside of the cylinder and a portionon the outside, a series of wings or vanes carried by eachendless chain,the wings of one chain being slightly out of alinement with and meansfor menace 5. Ina propelling device I01 aeroplanes,

a'cylinder, a plurality of endless chains carried by the cylinder, saidendless chains being disposed longitudinally with respect to thecylinder and having portions on the inside and outside of the cylinder,a series of wings or. vanes carried by each of said longitudinallyextending chains, the wings of one chain being out of alinement with thewings of the adjacent chains on either side thereof, and meansforxca'using the movement of the chains-I from one end of the cylinderto the other at a uniform speed for allthe chains.

6. In a propelling device for aeroplanes, a casing having a double wall,one of said walls being an inner cylindrical wall and the other wallbeing an outer tapered wall of cylindrical cross section, an endlesschain disposed longitudinally of the casing and arranged totravelthrough the inner portion of the casing in one direction and inthe opposite direction on the outside of the casing, a plurality ofwings or vanes carried by said endless chain, endless chains disposedin'parallel arrange ment with said first named endless chain around thecasing, each of said endless a plurality of similar a casing havingdouble walls, the inner wall being cylindrical, the outer wallsurrounding the inner wall and being tapered, said outer wall beingcylindrical in cross'section, a plurality of endless chains disposedlongit' portion of each chain being on the interior of the casing undaportion being on the exterior, means simultaneously so as to traveltoward the for moving the said chains udinally with respect to thecasing, a

larger end ofthe outer wall on the exterior thereof, and in the oppositedirection within the cylindrical interior wall, a plurality of wings orvanes carried by each of the endless chains, said wings or vanes beingarranged in groups with the'wings of adjacent endless chains, the wingsof any one group being arranged to move one behind the other when thewings are on the-inside of the casing.

8. In a propelling device for aeroplanes, a casing having double'walls,the inner w all being cylindrical. the outer wall surrounding the innerwall and being tapered, said outer wall being cylindrical in crosssection, a plurality of endless chains disposed longitudinally withrespect to the casing, a portion of each chain being on the interior ofmew the casing and a portion being on the exterior, means for movingsaid chains simultaneously so as to travel toward the larger end of theouter wall on the exterior thereof and in the opposite direction withinthe cylindrical interim Wall, a plurality of wings or vanes envied byeach of the endless chains. wings or vanes being arranged in groups withthe wings of adjacent endlesschains. the wings of any one group 10spaced therefronito permit theexit of the 5 vanes or wings.

HARRY E. ROSE,

